Check Point and Phylum are warning of recently identified NPM and PyPI packages designed to steal user information and download additional payloads.
Taking advantage of the broad use of open source code in application development, malicious actors are increasingly relying on software supply chain attacks to infect both developers and users with malware.
According to an October 2022 Sonatype report, the number of software supply chain attacks observed in 2022 was 633% higher compared to the previous year.
Node.js (NPM) and Python (PyPI) repositories are the preferred targets for malicious packages, mainly because code execution can be triggered during package installation, Check Point notes.
In a new report, the cybersecurity firm says it has identified two malicious Python packages that fit this description.
The first of them, Python-drgn, was uploaded to PyPI on August 8, 2022. Relying on typo-squatting, the package is meant to attract users who are looking for Drgn, a debugger with an emphasis on programmability.
The malicious package consists of a single setup.py file, which automatically runs during package installation and which contains malware. When executed, the malware stores the username, the working directory’s path, and networking information, and sends it to a remote, private Slack channel.
The second malicious package is named bloxflip, typosquatting the Bloxflip.py package, which is an API wrapper for bloxflip.com.
The malicious code within bloxflip disables Windows Defender to prevent detection, then fetches an executable from a remote server, creates a subprocess, and executes the malicious payload.
Phylum, on the other hand, says it has discovered
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